This is due to a bug in kernel/sys.c in the function notifier_chain_unregister(). where the 'notifier_lock' can't be acquired while reboot is running. I suspect any other drivers that call this function on shutdown from unregister_reboot_notifier() (in the case where the root filesystem is mounted through the driver will also have this problem), i.e. DAC960.c (Mylex) and gdth.c (ICP). The fix for now is to modify kernel/sys.c, the function "notifier_chain_unregister", and remove the write_lock(¬ifier_lock), and write_unlock(¬ifier_lock) calls from this function and recompile your kernel. -- Adam Radford Software Engineer 3ware, Inc. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, September 15, 2000 12:49 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Bug in 3w-xxxx.c Hi, i have discovered a problem with a 3ware 5400 controller inside my SMP system (Dual PIII800, kernel 2.4.0-test7, 3w-xxxx.c version 1.02.00.002). Problem: System will not reboot or halt. Last message on console comes form within 3w-xxxx.c. Solution: remove call to function unregister_reboot_notifier() in function tw_halt() solves the problem. Regards, Frank Koeck --- Frank Koeck Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg Phone: +49-6221-516-518 Fax: +49-6221-516-602 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
